IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0012066
(2008-01-31)
|
등록번호 |
US8042854
(2011-10-12)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
20 |
초록
▼
An expandable trailer for transporting and using exercise equipment on the expanded trailer platform, comprising a boxcar shaped trailer mounted on wheels with a hitch for connecting to a motor vehicle. The boxcar walls are hingedly connected to the floor and pivotally open, extending the boxcar pla
An expandable trailer for transporting and using exercise equipment on the expanded trailer platform, comprising a boxcar shaped trailer mounted on wheels with a hitch for connecting to a motor vehicle. The boxcar walls are hingedly connected to the floor and pivotally open, extending the boxcar platform. Preferred embodiments include truss systems mounted to the platform equipped with cylinder type braces or pulleys that facilitate manually or automatically opening and closing the boxcar walls.
대표청구항
▼
What is claimed is: 1. An expansible trailer with retractable walls, comprising: four walls, including a retractable front, rear, left and right opposing side-walls, each wall having an outside and an inside surface, a hinged peripheral edge and an opposing free edge with two opposing side edges the
What is claimed is: 1. An expansible trailer with retractable walls, comprising: four walls, including a retractable front, rear, left and right opposing side-walls, each wall having an outside and an inside surface, a hinged peripheral edge and an opposing free edge with two opposing side edges there between; a platform floor, having an underside, front and rear peripheral edges and left and right opposing side peripheral edges; the front, rear, left and right side walls being hingedly connected to the platform floor at the front, rear, left and right platform peripheral edges, respectively, wherein when the four walls form an upright right angle between each wall inside surface and the platform floor, the four walls and platform floor form a box with substantially square corners between the walls; each wall being capable of swinging about each respective wall's hinged peripheral edge until each respective wall's inside surface and the platform floor are coplanar;four panel sections, which are substantially square, comprising a first panel section, a second panel section, a third panel section, and forth panel section; each panel section having a hinged peripheral edge and an opposing free edge; the side edges of the front and rear walls being separately and hingedly connected to the hinged edge of the first, second, third, and fourth panel section, respectively; wherein, the side, front, and rear walls being upright at right angles with the platform floor, the hinged first and third panel sections overlap and are capable of being fastened to the left opposing side wall, and the second and fourth hinged panel sections overlap and are capable of being fastened to the right opposing side wall, preventing the four walls from collapsing; wherein the four walls being coplanar with the platform floor; the panel sections are also coplanar with the platform floor and substantially fill the space between the side peripheral edges of the side, front, and rear walls, respectively; and wherein at least one piece of exercise equipment being capable of being loaded onto the platform floor, the four walls, and hinged panel sections; the expanded trailer floor area comprising the inside surfaces of the front, rear, and side walls, panel sections, and the platform floor when the four walls and panel sections are coplanar with the platform floor;and a plurality of supports fixed to the outside surfaces and proximal to the free edges of the hinged panel sections, the side, front, and rear walls; the supports having a load bearing capacity sized to support the weight of one of said walls or one of said hinged panel sections, and the weight of at least one piece of exercise equipment while being used by people when the four walls and hinged panel sections are coplanar with the platform floor and the supports are wedged between the ground and the outside surfaces of the walls and hinged panel sections;wherein when the four walls and the platform floor form a box, the trailer being capable of being loaded with at least one piece of exercise equipment, attached to a motor vehicle, and towed on the road; wherein when the four walls are coplanar with the platform floor, at least one piece of exercise equipment being capable of being spread across the expanded trailer floor area;and wherein when the side, front, and rear walls and the platform floor form a box, one person being capable of lowering the four walls by unfastening the first and second hinged panel sections; then the person being capable of first lowering the unfastened rear wall; the side and front walls remaining upright because of the side walls being fastened to the third and fourth hinged panel sections hingedly attached to the front wall; the person then being capable of unfastening the third or fourth hinged panel sections, allowing the side walls to collapse one at time while the person is holding the front walls; then the person being capable of lowering the front wall.
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